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eLibrary > BS EN 88-2:2022+A1:2024 Safety and control devices for gas burners and gas burning appliances - Pressure regulators for inlet pressures above 50 kPa up to and including 500 kPa >

BS EN 88-2:2022+A1:2024 Safety and control devices for gas burners and gas burning appliances - Pressure regulators for inlet pressures above 50 kPa up to and including 500 kPa, 2024

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BS EN 88-2:2022+A1:2024 Safety and control devices for gas burners and gas burning appliances - Pressure regulators for inlet pressures above 50 kPa up to and including 500 kPa, 2024

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1 Scope
2 Normative references
3 Terms and definitions
4 Classification [Go to Page]
4.1 Classes of control
4.2 Groups of control
4.3 Classes of control functions
4.4 Types of DC supplied controls
5 Test conditions and uncertainty of measurements
6 Design and construction [Go to Page]
6.1 General
6.2 Mechanical parts of the control [Go to Page]
6.2.1 Appearance
6.2.2 Holes
6.2.3 Breather holes [Go to Page]
6.2.3.1 Requirements
6.2.3.2 Test for leakage of breather holes
6.2.4 Screwed fastenings
6.2.5 Jointing
6.2.6 Moving parts
6.2.7 Sealing caps
6.2.8 Dismantling and reassembly
6.2.9 Auxiliary canals and orifices
6.2.10 Presetting device
6.2.101 External visual indication of the position of the closure member
6.2.102 Parts transmitting actuating forces
6.2.103 Adjustments
6.2.104 Integral safety shut-off device
6.2.105 Resistance to pressure [Go to Page]
6.2.105.1 Requirements
6.2.105.2 Test
6.2.106 Signal tube connections
6.2.107 Creep relief device
6.3 Materials [Go to Page]
6.3.1 General material requirements
6.3.2 Housing [Go to Page]
6.3.2.1 Requirements
6.3.2.2 Test
6.3.3 Zinc alloys
6.3.4 Springs
6.3.5 Resistance to corrosion and surface protection
6.3.6 Impregnation
6.3.7 Seals for glands for moving parts
6.4 Gas connections
6.5 Electrical parts of the control [Go to Page]
6.5.1 General
6.5.2 Switching elements
6.5.3 Electrical components
6.6 Protection against internal faults for the purpose of functional safety
7 Performance [Go to Page]
7.1 General
7.2 Leak-tightness [Go to Page]
7.2.1 Requirements
7.2.2 Tests [Go to Page]
7.2.2.1 General
7.2.2.2 External leak-tightness
7.2.2.3 Internal leak-tightness
7.3 Torsion and bending
7.4 Rated flow rate [Go to Page]
7.4.1 Requirements
7.4.2 Test
7.4.3 Conversion of air flow rate
7.5 Durability [Go to Page]
7.5.1 Elastomers in contact with gas
7.5.2 Marking
7.5.3 Resistance to scratching
7.5.4 Resistance to humidity
7.6 Performance tests for electronic controls
7.7 Long-term performance for electronic controls
7.8 Data exchange
7.101 Pressure regulator performance [Go to Page]
7.101.1 General
7.101.2 General test procedure [Go to Page]
7.101.2.1 Apparatus
7.101.2.2 Conversion of the air flow rate
7.101.2.3 Methods of test
7.101.2.4 Accuracy class
7.101.2.5 Lock-up pressure class
7.101.2.6 Endurance of pressure regulator
7.102 Safety devices [Go to Page]
7.102.1 Over-pressure safety shut-off devices [Go to Page]
7.102.1.1 Requirements
7.102.1.2 Test
7.102.2 Under-pressure safety shut-off devices [Go to Page]
7.102.2.1 Requirements
7.102.2.2 Test
7.102.2.3 Verification of the lower limit of the highest set range
7.102.3 Endurance of safety device [Go to Page]
7.102.3.1 Requirements
7.102.3.2 Test
8 Electrical requirements [Go to Page]
8.1 General
8.2 Protection by enclosure
8.101 Plug connections
9 Electromagnetic compatibility (EMC) [Go to Page]
9.1 Protection against environmental influences
9.2 Supply voltage variations below 85 % of rated voltage
9.3 Voltage dips and interruptions
9.4 Supply frequency variations
9.5 Surge immunity tests
9.6 Electrical fast transient/burst
9.7 Immunity to conducted disturbances induced by radio frequency fields
9.8 Immunity to radiated disturbances induced by radio frequency fields
9.9 Electrostatic discharge tests
9.10 Power frequency magnetic field immunity tests
9.11 Harmonics and interharmonics including mains signalling at a. c. power port, low frequency immunity tests
10 Marking, instructions [Go to Page]
10.1 Marking
10.2 Instructions
10.3 Warning notice
Annex A (informative)Abbreviations and Symbols
Annex B (informative)Leak-tightness tests for gas controls – volumetric method
Annex C (informative)Leak-tightness tests for gas controls – pressure loss method
Annex D (normative)Conversion of pressure loss into leakage rate
Annex E (normative)Electrical/electronic component fault modes
Annex F (normative)Additional requirements for safety accessories and pressure accessories as defined in EU Directive 2014/68/EU
Annex G (normative)Materials for pressurized parts
Annex H (normative)Additional materials for pressurized parts
Annex I (normative)Requirements for controls used in DC supplied burners and appliances burning gaseous or liquid fuels
Annex J (normative)Method for the determination of a Safety Integrity Level (SIL)
Annex K (normative)Method for the determination of a Performance Level (PL)
Annex L (informative)Relationship between Safety Integrity Level (SIL) and Performance Level (PL)
Annex M (normative)Reset functions
Annex N (informative)Guidance document on Environmental Aspects
Annex O (normative)Seals of elastomer, cork and synthetic fibre mixtures
Annex AA (informative)Typical pressure regulators and safety devices [Go to Page]
AA.1 Main components of a pressure regulator
AA.2 Main components of a safety shut-off device
Annex BB (informative)Overview of requirements and test conditions (as given in 7.101), and examples of performance curves for pressure regulators
Annex CC (normative)Creep relief device [Go to Page]
CC.1 General
CC.2 Design and construction
CC.3 Performance requirements [Go to Page]
CC.3.1 Set point adjustment [Go to Page]
CC.3.1.1 Requirements
CC.3.1.2 Tests
CC.4 Marking, instructions [Go to Page]
CC.4.1 Marking
CC.4.2 Instructions
Annex DD (informative)Comparison between EN 334:2019 and !EN 88-2:2022+A1:2024"
Annex ZA (informative)Relationship between this European Standard and the essential requirements of Regulation (EU) 2016/426 aimed to be covered [Go to Page]

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BS EN 88-2:2022+A1:2024 Safety and control devices for gas burners and gas burning appliances - Pressure regulators for inlet pressures above 50 kPa up to and including 500 kPa, 2024

⨯To continue with accurate pricing,
please select your company type below: